The treasure hunt is back on when the crews return on their mission to unearth a fortune in some of Australia's harshest and remote landscapes. This season there's a new crew in the mix, family crew The Piromanskis, hunting for Fire Opal.
A new season of opal hunting begins! The Rookies face potential disaster from the get go. For Col's Crew, their mining quest is derailed by a serious illness, and the Opal Queen brings in new muscle and new machines.
Rookie Justin has cracks in his equipment and his relationships, while Col's Crew are a man down and on their last drum of fuel. In the wild west, new team the Fire Crew are on a wild goose chase hunting fabled fire opal.
For the Rookies, there's tension as a new partner leads them on a wild goose chase underground. The Cooke Brothers' season is off to a bad start, and Col's Crew is called on an emergency repair, wrestling a one-ton tire change.
Rookie Justin gambles thousands of dollars on buying his way out of trouble, while Opal Queen Kelly needs a big find underground or risks going broke. Aaron and Greg's Dragonfly claim might finally pay off.
The Rookies battle their biggest claim yet, and each other. Col's Crew must bring out the old machines to hunt a new opal seam, and it's heating up as the Fire Crew races a fuel leak, chasing legendary red fire opal.
Rookie Justin ropes in a stranger in a mad dash to get his excavator across a busy highway, while Opal Queen Kelly battles a new claim with a new partner. Aaron and Greg must push on at Dragonfly without Col, who has fallen ill.
Justin recruits fiancée Becky to save him from financial ruin, while the Fire Crew face deadly reptiles and a snapped suspension in search of blue fire opal. The Cooke Brothers go far underground, desperate for opal.
The Rookies battle busted hoses and finally hit treasure, while Boulder Boys Aaron and Greg bring in an old monster about to self-destruct. At their wash plant, The Cooke Brothers race to beat the worst drought in a decade.
The Fire Crew's season rests on a knife's edge as they struggle to battle their way back from a disastrous setback. The Opal Queen battles rock hard walls alone, desperate to find opal. The Boulder Boys hunt for opal by hand.
It's the end of the mining season and the last chance for all the opal hunting teams to make enough cash to survive. The Rookies gamble their hopes on one last haul of opal, and the Opal Queen makes a final desperate dig.